Currently Graham and Cassidy have left to act, under a special parliamentary procedure that would allow their invoice to progress with 51 votes in the Senate, instead of the 60 votes that most Senate legislation needs to win approval
In a long-running war on President Barack Obama’s signature health care law, Republicans face a countdown before Senate procedural rules make it much tougher for them to progress their latest bill.
Democrats warned that the bill would be very expensive for some states and advocated the Congressional Budget Office (CBO) to research more than the measure’s impact on the national budget.

“A comprehensive CBO analysis is essential before Republicans force a hasty, dangerous vote on what is an intense and dangerous repeal bill,” senior congressional Democrats Chuck Schumer, Nancy Pelosi, Bernie Sanders and others, said in a statement.

But if it can get through the Senate, it may have a chance in the House of Representatives, also run by Republicans. House Speaker Paul Ryan last week tweeted his appreciation to Graham and Cassidy and a few members of the Freedom Caucus group have praised the bill.

Republican Senators Lindsey Graham and Bill Cassidy propose replacing the 2010 Affordable Care Act, known informally as Obamacare, with a plan to give U.S. states money in the form of block grants to conduct their own health care programs.

Previous attempts by Republicans and failure met in July, when an Obamacare bill flopped from the Senate, triggering a barrage of hectoring tweets from Trump against party leaders.

CBO estimates that showed the bills would have left millions more Americans without health insurance have hampered, in part, past attempts by Republicans to gut Obamacare.

WASHINGTON (Reuters) – Democratic leaders in the U.S. Congress on Monday demanded that legislative analysts examine both the budgetary and health care impacts of a last-minute attempt by Republicans to repeal Obamacare.
Senate Republican Leader Mitch McConnell has not promised to bring the bill. But he’s asked the CBO for a quick assessment.
Additional reporting by Makini Brice and Roberta Rampton; Editing by Kevin Drawbaugh and Alistair Bell

But the party has failed to repeal Obamacare or enact a replacement system, despite controlling the Senate, the House and the White House since the November 2016 elections.
President Donald Trump has been telephoning members of Congress in recent days urging action on Obamacare.

Not all the Senate’s conservatives back the invoice. Senator Rand Paul stated it did not go far enough to repeal Obamacare.

Obama’s healthcare reform provided health benefits to 20 million Americans. Since its passage, Republicans have sought to undermine it, calling it government overreach.
Negotiations continued on a separate Senate attempt to repair Obamacare without repealing it, with all the gaps narrowing between the two sides, a spokeswoman for Democratic Senator Patty Murray said. Murray and Republican Lamar Alexander are currently working on a strategy to protect subsidies that are paid to insurance companies to help offset discounts.